Introduction. The technology for the production of soft drinks using non-traditional raw materials with the aim of improving and expanding the range of products was investigated.Materials and methods. Non-traditional raw materials were used to create the basis of a soft drink, in particular, strawberry and raspberry extract. The number of polyphenols in the objects of study were determined by spectrophotometric method. The optical density was measured in a cuvette with a layer thickness of 10 mm on a SF-46 spectrophotometer.Results and discussion. The content of phenolic compounds is crucial for the stability of beverages. The usіng of morphological particles of raw materials makes it possible not only to improve the sensory properties of beverages, but also to extend their stability. Raspberry powder extract (2.30 and 1.02) had better phenolic compounds and rutin content than strawberry powder extract (1.50 and 0.30).Available data indicate that the vegetative parts of plants contain no less biologically active substances, and sometimes even more than fruits, berries and vegetables, and their using allows to get concentrates and drinks from them with soft, piquant, harmoniously individual flavor and aroma.Focusing on the rich content of valuable components, the leaves and stems of raspberries and strawberries were investigated for the using of additives to the concentrate of soft drinks.Extract, which is prepared by boiling the chopped leaves and twigs in water for 3 minutes, has better sensory properties compared to other samples, so this method of preparing raspberry extract is optimal. Strawberries were excluded from the experiment due to the rich grassy tones in the taste and the corresponding aroma. 0.75 g and 1.0 g in 100 cm3 of raspberry extract are best suited for use in order to create the basis for a soft drink.Conclusions. Using of extracts of non-traditional plant materials will help to improve the sensory properties of the soft drink and expand the range.
The current market of low-alcohol beverages has been evaluated. The production of alcohol-free beverages is characterized by an extremely wide variety of raw materials. It is allowed to use juices, concentrates, infusions, and extracts of vegetable raw materials, flavours, emulsions, aromatic bases, food acids, vitamins, colourants, stabilizers, preservatives, clarifiers, opacifiers, sweeteners, and other raw materials that meet the requirements of regulations in effect and are authorized by the Ministry of Health. It has been established that the use of natural vegetable raw materials, which are a source of biologically active substances, will help increase the demand for these beverages. As such raw material, it has been suggested to use sugar sorghum, which is a promising agricultural crop and is characterized by a rich component composition. It has been suggested to obtain low-alcohol beverages by wort fermentationon on the basis of sugar sorghum juice, with the addition of apple and apple-cherry concentrates. The physicochemical parameters of the wort have been determined, and suggested the modes of its fermentation with dry yeast from the manufacturers Biowin (Brewgo-01) and Fermivin (Gervin GV1), related to brewing and wine yeast races, respectively. The influence of these yeasts on the accumulation of fermentation by-products and on the formation of organoleptic characteristics of beverages has been investigated. It has been found that in the samples studied, most of the fermentation by-products are in quantities close to the perception threshold, and, certainly, they affect the taste and aroma profile of the finished beverages. The profile charts of taste and aroma have been constructed, and the conclusion has been drawn about the prospects of using sugar sorghum juice in the low-alcohol beverages technology based on natural raw materials.
Introduction. The purpose of the publication is to establish correlation relations between the quality indicators of active coal (AC) used in the distillery production in vodka technology. Materials and methods. AC of natural origin, which is used for distillery production. Standard methods of determination and quantitative characteristics of AC quality indicators. Mathematical-statistical methods of research are linear correlation analysis based on the Pearson correlation coefficient. Results and discussion. It was found that the correlation coefficient (r) between iodine adsorption activity (Ai.), which characterizes the amount and volume of micropore AC with diameter Dm<2 nm, including nanopor with diameter Dm<1 nm, and methylene blue (Am.b.), which depends on the mesopore volume with a diameter Dme=2…50 nm, is equal to 0.93. The total volume of the micro-and mesoporous space determines the total sorption capacity of AC relative to the organic impurities present in the water-alcohol mixtures. AC's sorption activity also depends on its fractional composition. The correlation (reverse dependence) between adsorption activity on acetic acid (Aa.a.) and the mass fraction of the sorbent residue on a screen with a cloth №10 (F№10) with a coefficient r=-0,94 was established. Reducing the mass fraction of the residual on a screen with a cloth from 97…98% to 62…64% leads to an increase in adsorption activity of AС by acetic acid to 117 ml versus 62 ml. This is directly due to the fact that the residual sorbent on the sieve № 10 has a large area of the surface of the microporous and mesoporous space due to the reduced size of the grains. The total volume of sorbents in water (Tp.v.) is directly proportional to the mass fraction of water soluble ash (Mw.a.) r=0.92 and the mass fraction of moisture (Mm.) at r=0.99. In order to release AC from water soluble ashes and increase the volume of pore space, it will be logical to wash the prepared AC with water and then dry it to the water content in the coal to 2%. It was established that the fractional composition, the mass of the residue on the sieve with canvas № 36 (F№36) is directly dependent on the mass fraction of ash (Ma.) (r=0.91) and the mass fraction of water soluble ash (Mw.a.) (r=0.91), which indirectly indicates the influence of inorganic components AC on its mechanical strength. It is assumed that in the largest fractions of AC with a mass of the residue on the sieve with canvas № 36 (F№36=2.1%) contains more ash in the macropore space (Ma=5.12%), including water soluble ash (Mw. a.=1.95%). Conclusions. As a result of the analysis of standard quality indicators AB and the study of their mutual dependencies using the mathematicalstatistical method using the Pearson correlation coefficients, it has been found that 92% (12 out of 13) indicators have strong internal relationships that are characterized by a "very high" correlation force with coefficients r=0.90-0.99.
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